WO2018164554A1 - 무선랜 시스템에서 물리 프로토콜 데이터 유닛을 포함한 신호의 송수신 방법 및 이를 위한 장치 - Google Patents

무선랜 시스템에서 물리 프로토콜 데이터 유닛을 포함한 신호의 송수신 방법 및 이를 위한 장치 Download PDF

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WO2018164554A1
WO2018164554A1 PCT/KR2018/002897 KR2018002897W WO2018164554A1 WO 2018164554 A1 WO2018164554 A1 WO 2018164554A1 KR 2018002897 W KR2018002897 W KR 2018002897W WO 2018164554 A1 WO2018164554 A1 WO 2018164554A1
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Prior art keywords
blks
value
ppdu
length
trn
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PCT/KR2018/002897
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English (en)
French (fr)
Korean (ko)
Inventor
박성진
김진민
최진수
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엘지전자 주식회사
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Priority to BR112019001908A priority Critical patent/BR112019001908A2/pt
Priority to EP18763069.4A priority patent/EP3595204B1/en
Priority to CN201880002997.0A priority patent/CN109565362B/zh
Priority to KR1020197001718A priority patent/KR102331778B1/ko
Priority to ES18763069T priority patent/ES2875788T3/es
Priority to US16/322,101 priority patent/US10616798B2/en
Publication of WO2018164554A1 publication Critical patent/WO2018164554A1/ko
Priority to US16/802,340 priority patent/US11134414B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0025—Transmission of mode-switching indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2603—Signal structure ensuring backward compatibility with legacy system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Definitions

  • the following description relates to a method and apparatus for transmitting and receiving a signal including a physical protocol data unit (PPDU) of a station in a WLAN system.
  • PPDU physical protocol data unit
  • the present invention relates to a method for transmitting and receiving a signal capable of minimizing a length error (aka, spoofing error) and an apparatus therefor.
  • a length error aka, spoofing error
  • IEEE 802.11a and b are described in 2.4. Using unlicensed band at GHz or 5 GHz, IEEE 802.11b provides a transmission rate of 11 Mbps and IEEE 802.11a provides a transmission rate of 54 Mbps.
  • IEEE 802.11g applies orthogonal frequency-division multiplexing (OFDM) at 2.4 GHz to provide a transmission rate of 54 Mbps.
  • IEEE 802.11n applies multiple input multiple output OFDM (MIMO-OFDM) to provide a transmission rate of 300 Mbps for four spatial streams. IEEE 802.11n supports channel bandwidths up to 40 MHz, in this case providing a transmission rate of 600 Mbps.
  • IEEE 802.11ad defines performance enhancement for ultra-high throughput in the 60 GHz band, and IEEE 802.11ay for channel bonding and MIMO technology is introduced for the first time in the IEEE 802.11ad system.
  • PPDU Physical Protocol Data
  • N BLKS ' which is the minimum natural number of the number of SC (Single Carrier) blocks equal to or greater than the length of the second portion of the first portion and the second portion included in the unit)
  • N BLKS (where N BLKS is a natural number)
  • N TRN (where N TRN is an integer of 0 or more) of a header field included in the PPDU according to the applied MCS (Modulation and Coding Scheme) and the value of N BLKS '.
  • MCS Modulation and Coding Scheme
  • the PPDU may correspond to an EDMG (Enhanced Directional Multi Gigabit) PPDU.
  • the first portion may correspond to a non-EDMG portion of the EDMG PPDU
  • the second portion may correspond to an EDMG portion of the EDMG PPDU.
  • the first portion may be transmitted before the second portion.
  • a physical protocol data unit including a header field from the second STA
  • N BLKS where N BLKS is a natural number
  • N TRN where N TRN is an integer greater than or equal to 0
  • MCS Modulation and Coding Scheme
  • N BLKS ' is equal to the length of the second portion of the first portion and the second portion included in the PPDU or the length of the second portion.
  • a station apparatus for receiving a signal in a WLAN system, the station apparatus comprising: a transceiver having one or more RF (Radio Frequency) chains and configured to transmit and receive a signal with another station apparatus; And a processor connected to the transceiver, the processor processing a signal transmitted / received with the other station device, wherein the processor is configured to receive a physical protocol data unit (PPDU) including a header field from the other station device.
  • PPDU physical protocol data unit
  • N BLKS (where N BLKS is a natural number) and the value of N TRN (where N TRN is an integer greater than or equal to 0) of the header field are MCS (Modulation and Coding Scheme) and N BLKS 'applied to the PPDU.
  • N BLKS ' is set according to the value of, Single SC (Single Carrier) is greater than the length of the second portion of the first portion (portion) and the second portion included in the PPDU or greater than the length of the second portion
  • a station apparatus is proposed, corresponding to the minimum natural number of blocks.
  • the apparatus station can estimate the total length of the PPDU, based on the values of the N and N BLKS value of the TRN.
  • the station apparatus sets a network allocation vector (NAV) for a channel on which the PPDU is transmitted based on the total length of the estimated PPDU, or sets the PPDU within the total length of the estimated PPDU.
  • NAV network allocation vector
  • a station receiving the PPDU is a station capable of decoding all fields of the PPDU (eg, 11ay station) and a part of the PPDU.
  • a station capable of decoding only a field eg, 11ad station
  • the wireless communication system for example, 11ay system
  • FIG. 1 is a diagram illustrating an example of a configuration of a WLAN system.
  • FIG. 2 is a diagram illustrating another example of a configuration of a WLAN system.
  • FIG. 3 is a diagram for describing a channel in a 60 GHz band for explaining a channel bonding operation according to an embodiment of the present invention.
  • FIG. 4 is a diagram illustrating a basic method of performing channel bonding in a WLAN system.
  • 5 is a view for explaining the configuration of the beacon interval.
  • FIG. 6 is a diagram for explaining a physical configuration of an existing radio frame.
  • FIG. 7 and 8 are views for explaining the configuration of the header field of the radio frame of FIG.
  • FIG. 10 is a diagram schematically illustrating a PPDU structure applicable to the present invention.
  • 12 is a diagram simply showing an area where a spoofing error request value is satisfied when 2 is set as a TRN value.
  • FIG. 13 is a diagram simply showing an area where a spoofing error request value is satisfied when 3 is set as the TRN value.
  • 14 is a diagram simply showing an area where a spoofing error request value is satisfied when 4 is set as the TRN value.
  • 15 is a flowchart illustrating a signal transmission method of a station according to the present invention.
  • 16 is a view for explaining an apparatus for implementing the method as described above.
  • WLAN system will be described in detail as an example of the mobile communication system.
  • FIG. 1 is a diagram illustrating an example of a configuration of a WLAN system.
  • the WLAN system includes one or more basic service sets (BSSs).
  • BSS is a set of stations (STAs) that can successfully synchronize and communicate with each other.
  • An STA is a logical entity that includes a medium access control (MAC) and a physical layer interface to a wireless medium.
  • the STA is an access point (AP) and a non-AP STA (Non-AP Station). Include.
  • the portable terminal operated by the user among the STAs is a non-AP STA, and when referred to simply as an STA, it may also refer to a non-AP STA.
  • a non-AP STA may be a terminal, a wireless transmit / receive unit (WTRU), a user equipment (UE), a mobile station (MS), a mobile terminal, or a mobile subscriber. It may also be called another name such as a mobile subscriber unit.
  • the AP is an entity that provides an associated station (STA) coupled to the AP to access a distribution system (DS) through a wireless medium.
  • STA station
  • DS distribution system
  • the AP may be called a centralized controller, a base station (BS), a Node-B, a base transceiver system (BTS), a personal basic service set central point / access point (PCP / AP), or a site controller.
  • BSS can be divided into infrastructure BSS and Independent BSS (IBSS).
  • IBSS Independent BSS
  • the BSS shown in FIG. 2 is an infrastructure BSS.
  • Infrastructure BSS includes one or more STAs and APs.
  • communication between non-AP STAs is performed via an AP.
  • AP access point
  • the DS is a mechanism for connecting a plurality of APs.
  • the DS is not necessarily a network, and there is no limitation on the form if it can provide a predetermined distribution service.
  • the DS may be a wireless network such as a mesh network or a physical structure that connects APs to each other.
  • FIG. 3 is a diagram for describing a channel in a 60 GHz band for explaining a channel bonding operation according to an embodiment of the present invention.
  • FIG. 4 illustrates the operation of 40 MHz channel bonding by combining two 20 MHz channels in an IEEE 802.11n system.
  • 40/80/160 MHz channel bonding will be possible.
  • the two exemplary channels of FIG. 4 include a primary channel and a secondary channel, so that the STA may examine the channel state in a CSMA / CA manner for the primary channel of the two channels. If the secondary channel is idle for a predetermined time (e.g. PIFS) at the time when the primary channel idles for a constant backoff interval and the backoff count becomes zero, the STA is assigned to the primary channel and Auxiliary channels can be combined to transmit data.
  • PIFS a predetermined time
  • channel bonding when channel bonding is performed based on contention as illustrated in FIG. 4, channel bonding may be performed only when the auxiliary channel is idle for a predetermined time at the time when the backoff count for the primary channel expires. Therefore, the use of channel bonding is very limited, and it is difficult to flexibly respond to the media situation.
  • an aspect of the present invention proposes a method in which an AP transmits scheduling information to STAs to perform access on a scheduling basis. Meanwhile, another aspect of the present invention proposes a method of performing channel access based on the above-described scheduling or on a contention-based basis independently of the above-described scheduling. In addition, another aspect of the present invention proposes a method for performing communication through a spatial sharing technique based on beamforming.
  • the BTI means a section in which one or more DMG beacon frames can be transmitted.
  • A-BFT refers to a section in which beamforming training is performed by an STA that transmits a DMG beacon frame during a preceding BTI.
  • ATI means a request-response based management access interval between PCP / AP and non-PCP / non-AP STA.
  • one or more Content Based Access Period (CBAP) and one or more Service Periods (SPs) may be allocated as data transfer intervals (DTIs).
  • CBAP Content Based Access Period
  • SPs Service Periods
  • DTIs data transfer intervals
  • PHY MCS Note Control PHY 0 Single carrier PHY (SC PHY) 1, ..., 1225, ..., 31 (low power SC PHY) OFDM PHY 13, ..., 24
  • modulation modes can be used to meet different requirements (eg, high throughput or stability). Depending on your system, only some of these modes may be supported.
  • FIG. 6 is a diagram for explaining a physical configuration of an existing radio frame.
  • DMG Directional Multi-Gigabit
  • the preamble of the radio frame may include a Short Training Field (STF) and a Channel Estimation (CE).
  • the radio frame may include a header and a data field as a payload and optionally a training field for beamforming.
  • FIG. 7 and 8 are views for explaining the configuration of the header field of the radio frame of FIG.
  • FIG. 7 illustrates a case in which a single carrier (SC) mode is used.
  • SC single carrier
  • a header indicates information indicating an initial value of scrambling, a modulation and coding scheme (MCS), information indicating a length of data, and additional information.
  • MCS modulation and coding scheme
  • PPDU physical protocol data unit
  • packet type packet type
  • training length training length
  • aggregation aggregation
  • beam training request last RSSI (Received Signal Strength Indicator), truncation
  • HCS header check sequence
  • the header has 4 bits of reserved bits, which may be used in the following description.
  • the IEEE 802.11ay system is considering introducing channel bonding and MIMO technology for the first time in the existing 11ad system.
  • a new PPDU structure is needed. That is, the existing 11ad PPDU structure has limitations in supporting legacy terminals and implementing channel bonding and MIMO.
  • FIG. 9 illustrates a PPDU structure according to one preferred embodiment of the present invention.
  • the horizontal axis may correspond to the time domain and the vertical axis may correspond to the frequency domain.
  • a frequency band (eg, 400 MHz band) of a predetermined size may exist between frequency bands (eg, 1.83 GHz) used in each channel.
  • legacy preambles legacy STFs, legacy: CEs
  • a new STF and a legacy ST can be simultaneously transmitted through a 400 MHz band between each channel. Gap filling of the CE field may be considered.
  • the PPDU structure according to the present invention transmits ay STF, ay CE, ay header B, and payload in a broadband manner after legacy preamble, legacy header, and ay header A.
  • ay header, ay Payload field, and the like transmitted after the header field may be transmitted through channels used for bonding.
  • the ay header may be referred to as an enhanced directional multi-gigabit (EDMG) header to distinguish the ay header from the legacy header, and the name may be used interchangeably.
  • EDMG enhanced directional multi-gigabit
  • a total of six or eight channels may exist in 11ay, and a single STA may bond and transmit up to four channels.
  • the ay header and ay Payload may be transmitted through 2.16 GHz, 4.32 GHz, 6.48 GHz, 8.64 GHz bandwidth.
  • the PPDU format when repeatedly transmitting the legacy preamble without performing the gap-filling as described above may also be considered.
  • ay STF, ay CE, and ay header B are replaced by a legacy preamble, legacy header, and ay header A without a GF-Filling and thus without the GF-STF and GF-CE fields shown by dotted lines in FIG. 8. It has a form of transmission.
  • FIG. 10 is a diagram schematically illustrating a PPDU structure applicable to the present invention. Briefly summarizing the above-described PPDU format can be represented as shown in FIG.
  • the PPDU format applicable to the 11ay system includes L-STF, L-CE, L-Header, EDMG-Header-A, EDMG-STF, EDMG-CEF, EDMG-Header-B, Data, It may include a TRN field, which may be selectively included according to the type of the PPDU (eg, SU PPDU, MU PPDU, etc.).
  • a portion including the L-STF, L-CE, and L-header fields may be referred to as a non-EDMG portion, and the remaining portion may be referred to as an EDMG region.
  • the L-STF, L-CE, L-Header, and EDMG-Header-A fields may be called pre-EDMG modulated fields, and the rest may be called EDMG modulated fields.
  • the (legacy) preamble portion of the PPDU includes packet detection, automatic gain control (AGC), frequency offset estimation, synchronization, modulation (SC or OFDM) indication, and channel measurement. (channel estimation) can be used.
  • the format of the preamble may be common for the OFDM packet and the SC packet.
  • the preamble may include a Short Training Field (STF) and a Channel Estimation (CE) field located after the STF field.
  • STF Short Training Field
  • CE Channel Estimation
  • the preamble is the part of the PPDU that is used for packet detection, AGC, frequency offset estimation, synchronization, indication of modulation (SC or OFDM) and channel estimation.
  • the format of the preamble is common to both OFDM packets and SC packets .
  • the preamble is composed of two parts: the Short Training field and the Channel Estimation field.
  • a requirement of a spoofing error for an EDMG SC (Single Carrier) mode PPDU or an EDMG OFDM mode PPDU may be defined as follows.
  • the present invention will be described in detail with respect to the configuration method of the L-Header field that can satisfy the requirements of the spoofing error as described above and a signal transmission and reception method based thereon.
  • the EDMG STA decoding the EDMG PPDU may calculate the TXTIME EDMG , which is the length of the EDMG PPDU, based on the following equation.
  • T L - STF indicates the length of the L-STF field
  • T L -CE indicates the length of the L-CE field
  • T L -Header indicates the length of the L-Header field.
  • T EDMG Header- A indicates the length of the EDMG Header-A field
  • T EDMG STF Represents the length of the EDMG STF field
  • T EDMG CE denotes the length (duration) of EDMG CE field
  • T EDMG Header- B denotes the length (duration) of EDMG Header B-field
  • T Data denotes the length (duration) of the Data field
  • T is TRN TRN field It represents the length of.
  • legacy STAs eg, DMG STAs
  • MU multi-user
  • EDMG STAs for MU-EDMG PPDUs that fail to decode the EDMG Header fields of an EDMG PPDU
  • TXTIME that is, an approximation value for the EDMG PPDU, may be calculated based on information obtained from the L-Header as shown in the following equation.
  • T STF T L - STF
  • T CE T L -CE
  • T Header T L -Header
  • T Data ((512 * N BLKS ) + 64) * T c .
  • N BLKS means the number of SC symbol blocks
  • T c means SC chip time duration.
  • N BLKS which is the number of SC symbol blocks
  • MCS modulation and coding scheme
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • 16QAM Quadrature Amplitude Modulation
  • 64QAM 64QAM
  • the MCS provides a resolution corresponding to one symbol block (eg, 512 * T c ), and the maximum PPDU length (eg, aPPDUMaxtime) is 2 ms or less. Therefore, when QPSK, 16QAM or 64QAM is applied as the MCS value, Equation 3 may be always satisfied. However, the maximum PPDU length is 2ms or less.
  • the BPSK MCS provides a resolution corresponding to one symbol block (eg 512 * T c ) or two symbol blocks (eg 1024 * T c ), and the maximum PPDU The length can reach 2ms. Therefore, when BPSK is applied to the MCS value, Equation 3 may not always be satisfied. In other words, when the BPSK is applied to the MCS value, it may not be guaranteed that the above-described requirement for spoofing error is always satisfied.
  • the present invention describes a signal transmission / reception method that always satisfies a spoofing error requirement even when BPSK is applied to the MCS value by setting a value of a training length field included in an L-header field to a value greater than zero.
  • the available N BLKS application ( ) Is limited to the following equation.
  • N BLKS ( ) can be expressed as the following equation.
  • N BLKS for each corresponding Training Length value is shown in the table below.
  • the training field value may be set so that the TXTIME is calculated to 51.75 SC blocks. In this case, since the maximum spoofing error value is 0.75 SC blocks, the spoofing error requirement is satisfied.
  • equation may be arranged as shown in the following equation.
  • N CW of Low Density Parity Check (LDPC) codewords may be calculated as in the following equation.
  • the station setting the value of N BLKS and N TRN of the header field according to the MCS and the value of N BLKS 'applied to the PPDU is (A) applied to the PPDU. If the MCS is not Binary Phase Shift Keying (BPSK), the value of N BLKS is set equal to the value of N BLKS 'and the value of N TRN is set to 0, (B) for the PPDU.
  • MCS Binary Phase Shift Keying
  • the MCS to be applied is BPSK and the N BLKS 'mod 3 ⁇ 1
  • the configuration of setting the value of the N BLKS equal to the value of the N BLKS ' and setting the value of the N TRN to 0, and (C) "If the mod 3 1, the value of the N BLKS is N BLKS, the MCS to be applied to the PPDU BPSK and the N BLKS value of the set 19 or 20, a value less than said N TRN is configured to be set to 2 It may include.
  • the station may determine whether the PPDU is a PPDU transmitted to itself and perform an operation corresponding thereto (eg, If the PPDU is a PPDU transmitted to it, the data contained in the transmitted PPDU is decoded, or if the PPDU is not a PPDU transmitted to the PPDU, the length of the transmitted PPDU is estimated to determine the length of the PPDU in the corresponding channel. Limit the sending and receiving of signals).
  • the station cannot decode substantial data included in the PPDU, and the station sets a network allocation vector (NAV) for a channel on which the PPDU is transmitted based on the estimated total length of the PPDU, Signal transmission and reception in the channel over which the PPDU is transmitted may be limited within the estimated total length of the PPDU.
  • NAV network allocation vector
  • 16 is a view for explaining an apparatus for implementing the method as described above.
  • the wireless device 100 of FIG. 16 may correspond to an STA for transmitting the signal described in the above description, and the wireless device 150 may correspond to an STA for receiving the signal described in the above description.
  • the station transmitting the signal may correspond to an 11ay terminal or PCP / AP supporting the 11ay system, and the station receiving the signal may not support the 11ay system as well as the 11ay terminal or PCP / AP supporting the 11ay system. It may correspond to a legacy terminal (eg, 11ad terminal).
  • an STA that transmits a signal is called a transmitting device 100
  • an STA that receives a signal is called a receiving device 150.
  • the processors 110 and 160 and / or the transceivers 130 and 180 may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and / or data processors.
  • the memory 120, 170 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and / or other storage unit.
  • ROM read-only memory
  • RAM random access memory
  • flash memory memory card
  • storage medium storage medium and / or other storage unit.
  • the method described above can be executed as a module (eg, process, function) that performs the functions described above.
  • the module may be stored in the memories 120 and 170 and may be executed by the processors 110 and 160.
  • the memories 120 and 170 may be disposed inside or outside the processes 110 and 160, and may be connected to the processes 110 and 160 by well-known means.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)
PCT/KR2018/002897 2017-03-10 2018-03-12 무선랜 시스템에서 물리 프로토콜 데이터 유닛을 포함한 신호의 송수신 방법 및 이를 위한 장치 WO2018164554A1 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BR112019001908A BR112019001908A2 (pt) 2017-03-10 2018-03-12 método para transmitir e receber sinal que inclui unidade de dados de protocolo física em sistema lan sem fio e aparelho para isso
EP18763069.4A EP3595204B1 (en) 2017-03-10 2018-03-12 Method for transmitting and receiving signal including physical protocol data unit in wireless lan system and apparatus therefor
CN201880002997.0A CN109565362B (zh) 2017-03-10 2018-03-12 无线lan系统中发送和接收信号的方法及装置
KR1020197001718A KR102331778B1 (ko) 2017-03-10 2018-03-12 무선랜 시스템에서 물리 프로토콜 데이터 유닛을 포함한 신호의 송수신 방법 및 이를 위한 장치
ES18763069T ES2875788T3 (es) 2017-03-10 2018-03-12 Método para transmitir y recibir señal que incluye unidad de datos de protocolo físico en sistema de LAN inalámbrica y aparato para el mismo
US16/322,101 US10616798B2 (en) 2017-03-10 2018-03-12 Method for transmitting and receiving signal including physical protocol data unit in wireless LAN system and apparatus therefor
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